Strengthen the bottom end of your BMW S54 engine with the ARP Head Stud Kit, BMW S54, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this head stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S54 engine
- Significantly increased clamping force over OEM fasteners
- Improved head gasket sealing and cylinder head clamping
- Ideal for stroker, supercharged and turbocharged builds
- Re-usable — superior to single-use OEM torque-to-yield bolts
- Manufactured from premium, specially heat-treated materials
- Available in multiple type options to suit your build
- Supplied by ARP (Automotive Racing Products), trusted by BMW enthusiasts worldwide
Product Details
Strengthen the bottom end of your BMW S54B32 / S54 engines with the ARP Head Stud Kit, BMW S54, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this head stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S54B32 / S54 engines
- Significantly increased clamping force over OEM fasteners
- Improved head gasket sealing and cylinder head clamping
- Ideal for stroker, supercharged and turbocharged builds
- Re-usable — superior to single-use OEM torque-to-yield bolts
- Manufactured from premium, specially heat-treated materials
- Available in multiple type options to suit your build
- Supplied by ARP (Automotive Racing Products), trusted by BMW enthusiasts worldwide
Product Details
The ARP 201-4303 head stud kit is custom-designed for the BMW S54 inline 6-cylinder engine and serves as a replacement for the BMW head bolts 11127831862 commonly found in E46 M3 and E36/7 Z3 M Roadster, Z4 M Coupe and Roadster, and E46 M3 CSL.
By installing ARP head studs on an S54 engine, you can enjoy several benefits, including increased clamping force and improved head gasket sealing, which can help prevent head gasket failure. This is especially crucial for high-performance, stroker, supercharged, or turbocharged engines, where increased cylinder pressure can place extra stress on the head gasket and bolts.
ARP2000
Strength: 220,000 psi
ARP2000 is a heavily alloyed steel that receives special heat treatment and tempering for strength and hardness. ARP2000 is a well-established choice in motorsport and performance applications, as well as standard engine rebuilds. ARP2000 hardware is celebrated by engine builders for its high tensile strength and much greater quality than OEM fasteners.
Custom Age 625+
Strength: 280,000 psi
ARP’s Custom Age 625+ is a newly formulated super-alloy which offers superior fatigue cycle life, tensile strength, and toughness. CA625+ hardware is celebrated for its high tensile strength and fatigue resistance, making it necessary for stroker, supercharged, and turbocharged applications where elevated cylinder pressures place extra stress on the head gasket and fasteners.
Installation Instructions:
1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase if necessary with ARP Thread Chaser.
2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit, length and dimension.
3. If the cylinder head studs protrude into a water jacket, lubricate the block threads of the studs with ARP THREAD SEALER.
4. Screw studs into the block “HAND TIGHT ONLY”.
5. Install the cylinder head(s) and check for binding or misalignment.
6. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
Then install the washers and the nuts onto the studs and tighten them hand tight.
ARP recommends using the ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when motor oil or other low quality lubricants are used.
PRELOAD (TORQUE) RECOMMENDATIONS
7. Following the manufacturers recommended torque sequence tighten the nuts steps 1-3
ARP2000
Step 1: Tighten to 35 ft-lbs.
Step 2: Tighten to 70 ft-lbs.
Step 3: Tighten to 105 ft-lbs. with ARP Ultra-Torque fastener assembly lubricant
CA 625+
Step 1: Tighten to 35 ft-lbs.
Step 2: Tighten to 70 ft-lbs.
Step 3: Tighten to 100 ft-lbs.
with ARP Ultra-Torque fastener assembly lubricant
Bolt Torque Sequence
| 12 | 10 | 4 | 2 | 6 | 8 | 14 |
| 13 | 7 | 5 | 1 | 3 | 9 | 11 |
Please note: After initial assembly, it is necessary to allow the engine to complete a full heat cycle, then re-torque your head studs to spec. This means allowing the engine to warm up to its normal operating temperature, remain at operating temperature for several minutes to ensure each component is uniformly heated, then turned off and cooled completely to ambient temperature.
BMW S54 Applications:
BMW 3 Series
2000-2006 E46 M3
BMW Z3 Series
2001-2002 Z3 M
BMW Z4 Series
2006-2008 Z4 M
Type Options
- ARP2000
- Custom Age 625+
Compatibility
BMW S54 Models
- BMW E46 M3
- BMW Z3 M Roadster / Coupe
- BMW Z4 M Roadster / Coupe
Why Choose ARP (Automotive Racing Products)?
- Global leader in performance engine fasteners
- Premium materials with specialist heat treatment
- Manufactured in-house in the USA
- Trusted from street rebuilds to professional motorsport
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine ARP (Automotive Racing Products) products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW S54B32 / S54 build with the ARP Head Stud Kit, BMW S54 — available now from R44 Performance.
Type Options
- ARP2000
- Custom Age 625+
Compatibility
BMW S54 Models
- BMW E46 M3
- BMW Z3 M Roadster / Coupe
- BMW Z4 M Roadster / Coupe
Why Choose ARP (Automotive Racing Products)?
- Global leader in performance engine fasteners
- Premium materials with specialist heat treatment
- Manufactured in-house in the USA
- Trusted from street rebuilds to professional motorsport
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine ARP (Automotive Racing Products) products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW S54 build with the ARP Head Stud Kit, BMW S54 — available now from R44 Performance.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
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